Upper-roughing machine



Julyl9, 1932. w. c. CARD, JR

I UPPER ROUGHING MACHINE Original Filed May 29. 1929 vweutoz 0 abhor/nuPatented July 19, 1932 UNITED STATES PATENT: OFFIC WILLIAM C. CARD, JR.,OF WAVERLY, MASSACHUSETTS, ASSIGNOR TO COMPO SHOE MA- CHINERYCORPORATION, OF NEW YORK,N. Y., A CORPORATION OF DELAWARE UPPER-ROUGHINGMACHINE Application filed May 29, 1929, Serial No. 366,829. RenewedDecember 9, 1931.

This invention relates to machinery for manufacturing footwear, and,more particularly, to mechanism for preparing a lasted shoe upper priorto the aflixation of an outer sole thereto by means of adhesive cement.

A general object of the invention is to provide a mechanism by which thelasting allowance of the lasted upper may be uniformly roughed so thatthe leather or other material of which the lasting allowance is composedwill readily accept the adhesive cement and will form a firm union withthe outer sole when affixed thereto.

A more specific object of the invention is to provide a roughing machinewhich will rapidly, uniformly and efliciently rough the lastingallowance of shoe uppers of varied materials, which will be simple andeconomical of construction, and which will operate with freedom fromwear and mechanical difficulties.

Other objects of the invention will in part be obvious and will in partappear hereinafter.

The invention accordingly comprises the features of construction,combination of elements and arrangement of parts which will beexemplified in the construction hereinafter set forth, and the scope ofthe application of which will be indicated in the claims.

For a, fuller understanding of the nature and objects of the inventionreference should be had to the following detailed description taken inconnection with the accompanying drawing, in which:

Figure 1 is a front elevational view of one embodiment of the invention,shown partially broken away;

Fig. 2 is an end elevation of Fig. 1;

Fig. 3 is a detail side elevation, partly broken away, of the roughingelement; and

Fig. 4 is a diametrical cross-section of the roughing element.

In the manufacture of footwear, leathers and fabrics having widelydifferent characteristics are used, and when the outer soles are to beaffixed thereto by an adhesive cement it is necessary that the lastingallowance of the lasted upper be prepared to receive the adhesive cementand to form a firm union or bond with the outer sole when afiixedthereto.

ing roughing elements may be conveniently mounted upon a horizontalspindle of the bench type, such as is ordinarily used on bench-mountedemery wheels-and the like.

More specifically, the device may comprise a base 10 adapted to besecured to a suitable support, such as a bench 11, a sub-base 12 havingbearings 18 in which is mounted a rotatable spindle 14. The spindle 14may be power-driven in any suitable manner, such as, for example, abelt-pulley 15, in which case it is preferably also provided with anidler-pulley 16 and a belt-guide 17 which is shiftable axially withrespect to the spindle 14 on a suitable supported rod 18 by means of ahandle 19.

Mounted upon the spindle 14 is a roughing element 20, which will be moreparticularly described hereinafter and which is preferably enclosedwithin the housing 21 connected to a suction-pipe 22 and has a removablefront plate 23 provided with an opening 24 through which only a portionof the periphery of the roughing element is exposed.

Considered generally, the roughing element 20 comprises a continuousband of outwardlyextending wire bristles, which are resilientlysupported with respect to the rotatable spindle 14 whereby, when thepressure is exerted against the ends thereof, they have a limited radialmovement, so that they re: siliently press against and uniformly roughthe lasting allowance of the lasted upper. More particularly, as isshown in Fig. 4, the roughing element comprises a circular block 25,upon the periphery of which is mounted a plurality of spring-members 26which at their outer ends resiliently support a continuous band 27carrying a plurality of outwardly-extending wire bristles 28. Thespring-members 26 may be of suflicient strength to give the desiredresiliency of themselves, or the block 25 may also be provided-as isshown-with supplemental spring-members 29 of the coil type, which act 5,against the under side of the members 26, in which case the latter maybe considered as being pivotally mounted with respect to said block 25.

Although in the drawing and in the above description the rotatingspindle 14 has been shown and described as a belt-driven spindle afiixedwith respect to a supporting element,

it is to be understood that without departing from the spirit of theinvention the spindle 15 may be otherwise driven and need not beaifixed, in which latter case the rotating roughing element may beutilized as a hand tool.

spindle be fixed in order that the lasting allowance of the lasted uppermay be held thereagainst in the manner indicated.

It will thus be seen that by means of the present invention there hasbeen provided a device which will rapidly and eificiently perform thedesired roughing operations on the lasting allowance of the lasted upperin the manner described above, and since certain changes may be made inthe above construction, and difi'erent embodiments of the inventioncould be made, without departing from the scope thereof, it is intendedthat all matter contained in the above description or shown in theaccompanying drawing shall be interpreted as illustrative and not in alimiting sense.

It is also to be understood that the following claims are intended tocover all of the generic and specific features of the invention hereindescribed, and all statements of the scope of the invention which as amatter of language might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secureby Letters Patent is:

1. A roughing machine for lasted shoe uppers, comprising, incombination, a rotatable roughing element, meansfor rotating the same,said roughing element comprising a circular block, a circular banddisposed circumferentially of said blockand carrying a plurality ofoutwardly-extending wire ristles; means pivotally mounted peripherallyof said block and extending outwardly to said band; and means forresiliently urging said pivotally-mounted members outwardly with respectto said block.

2. A roughing machine for lasted shoe uppers, comprising, incombination, a rotatable roughing element, means for rotating the same,said roughing element comprising a circular block, a circular banddisposed circumferentially of said block and carrying a plurality ofoutwardly-extending wire bristles; leaf-spring members peripherally 65mounted on said block and extending out- It is preferred, however, thatthe

